Do a \"telinit 1\", then try to enter things in the shell prompt, then try to delete with backspace. Ctrl-H seems to do erase the previous symbol, but it\'s getting echoed itself. In the ordinary root/user environment, backspace works in sh. --- ---
/bin/sh have been built without readline support. Single mode should run /bin/bash instead of /bin/sh.
The issue is that /bin/sh gets strange keybindings or keycodes in the single user mode. In a user profile, /bin/sh handles backspace properly.
Fixed in 5.49-ipl40mdk
OK, the default shell is now bash, but the terminal echo is still broken in sh.
Yes, /bin/sh have been built without readline and termcap/terminfo support.